4901:1-7-25
Number optimization.

All number holding telephone companies, including
wireless service providers, must adhere to the following
requirements:

(A) Upon request,
provide copies of all NXX code requests to the North American numbering plan
administrator (NANPA) or thousands block requests to the pooling administrator
to the chief of the telecommunications division of the utilities department of
the commission.

(C) The telephone
company must obtain NXX codes from NANPA or thousands blocks from the pooling
administrator only for those areas where it is certified and plans to activate
service within six months. If a telephone company is unable to meet the
six-month deadline for placing a code or thousands block into service by
returning a part 4 form to NANPA or to the pooling administrator, then further
action regarding this code or thousands block is the responsibility of the
commission and the telephone company.

(D) The telephone company will adopt all
current and future number resource optimization measures set forth by the
federal communications commission and the commission orders.